Jeff Ehret, president of Penta Building Group, signs the final steel beam during a topping-off ceremony for the Las Vegas Arena on Wednesday, May 27, 2015, in Las Vegas. Representatives from MGM Resorts International and AEG, contractors Hunt-Penta and elected officials were on hand to celebrate the installation of the arena's final steel beam. The $375 million arena is scheduled to open in Spring 2016.
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